"Traditional favorites such as hot dogs and ice cream will remain, but the new standards will provide additional choices, such as fish tacos and yogurt parfaits, for the 23 million people who buy meals in national parks each year," said National Park Service Director Jonathan Jarvis in a press release.

Options include items like lentil soup, bison hot dogs and fresh produce from local farms. Grand Canyon South Rim and Yellowstone National park are among a handful of sites already offering healthier fair.